#C63B3E#C63B3E

#C63B3E is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.8% C 0.176 H 23.8°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#C63B3E
RGB	rgb(198, 59, 62)
HSL	hsl(359, 55%, 50%)
HSV	hsv(359, 70%, 78%)
CMYK	cmyk(0%, 70.2%, 68.7%, 22.4%)
CIE-LAB	lab(46.29, 54.93, 30.49)
CIE-LCH	lch(46.29, 62.82, 29.04°)
OKLab	oklab(55.82% 0.1607 0.0709)
OKLCH	oklch(55.82% 0.176 23.8)
XYZ	xyz(25.7249, 15.4853, 6.1909)
Luminance	0.1548 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63B3E #3BC6C3

analogous

#C63B83 #C63B3E #C67D3B

triadic

#C63B3E #3EC63B #3B3EC6

tetradic

#C63B3E #83C63B #3BC6C3 #7D3BC6

square

#C63B3E #83C63B #3BC6C3 #7D3BC6

split-complementary

#C63B3E #3BC67D #3B83C6

monochromatic

#681E20 #982C2E #C63B3E #D46A6D #E29A9B

Accessibility & contrast

On white

5.13

#C63B3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#C63B3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63B3E

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63B3E	#FFFFFF	#000000	##FFFFFF
##C63B3E	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625B3D

Deuteranopia (green-blind)

#85793A

Tritanopia (blue-blind)

#D90C3E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63b3e;
/* rgb */ color: rgb(198, 59, 62);
/* oklch */ color: oklch(55.8% 0.176 23.8);

Tailwind

colors: {
  custom: {
    50: '#df7a73',
    500: '#c63b3e',
    950: '#000000',
  },
}

SCSS

$custom: #c63b3e;
$custom-light: #df7a73;
$custom-dark: #000000;

JSON

{
  "hex": "#c63b3e",
  "rgb": {
    "r": 198,
    "g": 59,
    "b": 62
  },
  "hsl": {
    "h": 358.705,
    "s": 54.941,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55821,
    "c": 0.17566,
    "h": 23.8
  },
  "luminance": 0.15481
}

Semantic roles & 50–950 ramp

primary

#C63B3E

secondary

#8FCDCC

accent

#DEDB4A

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63B3E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →